.sidenote.gloss::before {
  content: "訓詁";
  display: block;
  font-size: 0.75em;
  opacity: 0.6;
  margin-bottom: 0.3em;
}
.sidenote.note::before {
  content: "背景";
  display: block;
  font-size: 0.75em;
  opacity: 0.6;
  margin-bottom: 0.3em;
}
.sidenote.comment::before {
  content: "段評";
  display: block;
  font-size: 0.75em;
  opacity: 0.6;
  margin-bottom: 0.3em;
}
.person {
  font-weight: 500;
  color: #2b2b2b;
}